What is Litmus?
Litmus is a water-soluble mixture of natural dyes derived from certain species of lichens, particularly Roccella tinctoria and Lecanora tartarea. The term “litmus” originates from an old Norse word that denotes “dye-using moss.” It is a widely used compound for qualitative pH testing and is commonly used in chemistry laboratories, educational settings, and various industries to quickly assess whether a solution is acidic or alkaline.
Macsen Laboratories is the leading manufacturer and supplier of Litmus granules with ISO certification.
| PRODUCT SPECIFICATIONS | |
|---|---|
| Name of Product | Litmus Granules |
| Synonyms | Water-soluble mixture of different dyes extracted from lichens |
| CAS No | 1393-92-6 |
CHEMICAL PROPERTIES
| SR. No | Criteria | Limit/Specification |
|---|---|---|
| 1 | pH | 7.0 |
| 2 | Transition Range | pH 5 to pH 8 |
| 3 | Loss on drying | NMT 7% at 110°C |
| 4 | Ash Content | NMT 22.0% |
Uses
The common uses of Litmus are as follows-
- It is widely used as a pH indicator in chemistry to determine whether a solution is acidic, basic (alkaline), or neutral. Blue litmus turns red in an acidic solution and red litmus turns blue in a basic solution. It remains its original color (usually purple) in a neutral solution.
- It is employed to check the acidity or alkalinity of various products, such as fruit juices, wines, and dairy products, to ensure they meet certain quality standards.
- It can be used to test the pH of water in swimming pools, aquariums, and other water systems to ensure they are properly balanced.
- In laboratory experiments, researchers and scientists can use litmus granules to test the pH of solutions or to monitor pH changes during chemical reactions.
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